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A printable 12 step worksheet packet to assist in working the 12 steps in 12 step programs. Free download available in PDF, ODT, DOCX, XLSX and RTF.
A free 3rd step worksheet for AA, NA and other 12 step programs. This step 3 worksheet includes questions in PDF or DOC format and is free to print or download.
A free 1st step worksheet for AA, NA and other 12 step programs. Step 1 worksheet includes questions in PDF or DOC format and is free to print or download.
Lighter (less dense), warm material rises while heavier (more dense) cool material sinks. It is this movement that creates circulation patterns known as convection currents. Ridge push. Gravitational force that causes a plate to move away from the crest of an ocean ridge, and into a subduction zone. slab pull.
ridge push: the force due to the buoyancy of the hot mantle rising to the surface beneath the ridge. viscous drag: the force opposing motion of the plate and slab past the viscous mantle underneath or on the side. This force balance is given by: Fridge − push + Fslab − pull − Fviscous − drag = 0.
Ridge push (also known as gravitational slides or sliding plate force) is a proposed driving force for plate motion in plate tectonics that occurs at mid-ocean ridges as the result of the rigid lithosphere sliding down the hot, raised asthenosphere below mid-ocean ridges.
Ridge push force and slab pull are two key forces that drive tectonic plate movements. Ridge push occurs at mid-ocean ridges, where newly formed, elevated oceanic crust slides down due to gravity, while slab pull takes place at subduction zones where denser oceanic plates sink into the mantle.
